Excessive sweating over the whole body

Sweating across many body areas may happen in hot or humid conditions, during activity, or with fever. It can also reflect a general sweating tendency, a medicine effect, hormonal change, or a condition such as hyperthyroidism. Night sweating, racing heartbeat, tremor, unexplained weight change, persistent thirst, or marked fatigue gives a clinician useful context. Sweating after heat exposure with headache, nausea, weakness, or dizziness may fit heat exhaustion. Sweating with shakiness or confusion can occur when blood sugar is low.

Cool the room, wear light breathable clothing, replace fluids after heavy sweating, and avoid exercise while feeling unwell. Keep notes about onset, sleep-related episodes, triggers, medicines, and symptoms. A clinician may examine you and decide whether blood tests or a medication review are needed. Treatments designed for one area, such as iontophoresis, botulinum toxin injections, or microwave sweat gland treatment, may not suit widespread sweating, so the cause and pattern matter.

Seek urgent help for collapse, confusion, severe weakness, chest discomfort, breathing trouble, or a very high level of heat-related illness. Book medical advice when widespread sweating persists, starts without a clear trigger, soaks clothing during sleep, or limits daily activities. Tell the clinician about every medicine and supplement you use.

Ask what could explain whole-body sweating, whether your medicines or thyroid or glucose levels need review, and whether a dermatology referral is suitable. Ask how to manage fluid replacement safely.